And of course, Serena Williams has the best shot of all Americans to win the US Open title! She has not dropped a set on her way to the quarters. Serena disposed of Ana Ivanovic, 6-3, 6-4, on Monday afternoon.

Answering questions in Spanish, Nadal suddenly started grimacing in pain. He tilted his head back, covered his face with his arm. His face twisted in agony as he slid down in his chair, he motioned for help.

The U.S. Tennis Association says the singles champions at this year’s U.S. Open will each receive a record $1.8 million. Total prize money is rising by more than $1 million to $23.7 million, the most ever for the Grand Slam tournament.

The third-seeded Djokovic routed No. 19-seeded American Mardy Fish, 6-3, 6-4, 6-1 Monday, sapping the energy from both his opponent and nearly packed Arthur Ashe Stadium and leaving only one American man in the draw at the U.S. Open.